YONKERS – With no suspect or motive following last week's discovery of 25 dead cats in the woods off Overlook Terrace, more than $23,000 in reward money is being offered for information leading to the arrest and conviction of those responsible.

Necropsies on the bodies of three of the 25 cats found Thursday in plastic bags hanging from trees — including a kitten who was only weeks old — found they were killed by blows to the head, according to Ernest Lungaro, director of enforcement at the Society for the Prevention of Cruelty to Animals of Westchester.

A baseball bat, two shovels and a metal pipe were found in the area and collected as evidence; it was not known if they had been used as weapons.

Some of the remains were recent, while others were skeletons that may have been there for up to a year.

Lungaro has said the killings would be treated as animal cruelty, a felony. He returned to the neighborhood to interview people Tuesday.

The organizations contributing reward money are: the American Society for the Prevention of Cruelty to Animals, $5,000; the Humane Society of the United States, $5,000; the Animal Legal Defense Fund, $5,000; PETA, $5,000; the Defense of Animals Fund, $2,500; and Alley Cat Allies, $750.

"These significant rewards highlight the horrific nature of this crime, and we are hopeful that the offer of this money will create an incentive for individuals with pertinent information on the case to come forward," SPCA of Westchester's Executive Director, Shannon Laukhuf said Tuesday.

The SPCA is the lead agency investigating the killings, working with the support of Yonkers police detectives.

Anyone with information can call the SPCA's Animal Cruelty Hotline at 914-941-7797.